After doing a bit of research, it appears that the reason for the ~3GB limit is not the 32-bit kernel, but the Intel chipset used on the 2006-2009 Intel Minis. There's no getting around it, unfortunately. The best 1,1 Mini owners can do is hack the firmware to turn theirs into 2,1._________________Upgraded MacMini (1,1) 1.66Ghz Core Duo -> (2,1) 2.16Ghz C2D, 4GB RAM, 500GB 7200rpm HDD, Airport Extreme "N"